kaylabroussard kaylabroussard
  • 16-12-2019
  • Physics
contestada

if a man has a mass of 74 kilograms runs 800 meters in 150 seconds, what is his average momentum?

Respuesta :

cryssatemp
cryssatemp cryssatemp
  • 23-12-2019

Answer: [tex]394.66 \frac{kg m}{s}[/tex]

Explanation:

Linear momentum [tex]p[/tex] is expressed as:

[tex]p=mV[/tex]

Where:

[tex]m=74 kg[/tex] is the mass of the man

[tex]V=\frac{d}{t}[/tex] is the velocity of the man, which can be calculated if we know the distance he has run [tex]d=800 m[/tex] and the time it took to him to travel that distance [tex]t=150 s[/tex]

Hence: [tex]V=\frac{800 m}{150 s}=5.33 m/s[/tex]

Solving for the momentum:

[tex]p=(74 kg)(5.33 m/s)[/tex]

[tex]p=394.66 \frac{kg.m}{s}[/tex]

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